On global warming, public policy is where the science was in 1998. Due to new evidence, science has since moved off in a different direction.

The Intergovernmental Panel on Climate Change (IPCC), the UN science body on this matter, is a political body composed mainly of bureaucrats. So far it has resisted acknowledging the new evidence. But as Lord Keynes famously asked, “When the facts change, I change my mind. What do you do, sir?”